ramthis9501
Senior Member
Ok like in on of my other threads, I said I was going to get the cat removed because it seemed to be clogged. I took it to the muffler shop today and he did a back pressure test on it. It's like new. My problem is that when I start it up, usually when it's cold, it idles kinda rough. We replaced the spark plugs and pcv valve. So now I'm thinking it's a vaccum leak. And I can hear it pretty good to. Where would it leak that would cause that? I've already checked the one going to the cruise control module under the battery box. Any ideas?
